/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineGroupsInterface.h
A structure for caching a list of people that have been invited to join a group
typedef [IGroupUserCollection](API\Plugins\OnlineSubsystem\Interfaces\IGroupUserCollection)< [FGroupMemberInvite](API\Plugins\OnlineSubsystem\Interfaces\FGroupMemberInvite) > IGroupInvites